Convert Provider to generic providers API

Convert all of the callers of Provider/HasProvider to use the type-safe
android.ModuleProvider API.

Bug: 316410648
Test: builds

Change-Id: I73479de1625fa2865b6c73444cd477e50d56dc5a

android/deapexer.go

@@ -167,7 +167,7 @@ func FindDeapexerProviderForModule(ctx ModuleContext) *DeapexerInfo {
 	if di != nil {
 		return di
 	}
-	ai := ctx.Provider(ApexInfoProvider).(ApexInfo)
+	ai, _ := ModuleProvider(ctx, ApexInfoProvider)
 	ctx.ModuleErrorf("No prebuilt APEX provides a deapexer module for APEX variant %s", ai.ApexVariationName)
 	return nil
 }

android/module.go

@@ -1648,7 +1648,7 @@ func (m *ModuleBase) GenerateBuildActions(blueprintCtx blueprint.ModuleContext)
 	if !ctx.PrimaryArch() {
 		suffix = append(suffix, ctx.Arch().ArchType.String())
 	}
-	if apexInfo := ctx.Provider(ApexInfoProvider).(ApexInfo); !apexInfo.IsForPlatform() {
+	if apexInfo, _ := ModuleProvider(ctx, ApexInfoProvider); !apexInfo.IsForPlatform() {
 		suffix = append(suffix, apexInfo.ApexVariationName)
 	}